re: #305 lostlakehiker

By implication you suggest that CO2 from volcanic eruptions may be a larger factor in the changing atmospheric CO2 level than human fossil fuel consumption. Is that what you meant to say?

Before answering, take your time. Read up a bit on the question. See if you can arrive at the actual answer to the question. It has an answer. Hint: the graph of CO2 level, month by month, taken in Hawaii, is amazingly regular. Every year, without exception, it goes down, and it goes up, and it ends up higher than it was the previous time last year.

Volcanoes don’t have that kind of schedule.

From the Cascade Policy Institute (cascadepolicy.org):

Although current climate science has shown that the world has warmed approximately 0.6 Celsius (1.1 Fahrenheit) during the past century, half of this warming occurred before human carbon dioxide emissions could have been responsible. Humankind undoubtedly has some influence on the planet; however, the magnitude of that influence is certainly up for debate. Alarmists have unjustifiably asserted that human-produced carbon dioxide is the main cause for current global warming; yet carbon dioxide is not the most influential greenhouse gas, and humans only contribute a mere 3.2% of overall carbon dioxide in the Earth’s atmosphere.